Complete exhaustion type lipstick tube

ABSTRACT

A lipstick tube has an outer-layer spiral tube, a middle-layer involution tube and a lipstick cup arranged on the inner side sequentially sheathed on the inner side of a base, and a longitudinal groove is arranged on the tube wall of the middle-layer involution tube. The lipstick cup has a vertical groove on the cup wall. A first lifting point is arranged directly under the vertical groove, engaged with the longitudinal groove of the middle-layer involution tube and the internal thread of the outer-layer spiral tube; a second lifting point is arranged on the outer surface of a base plate, engaged with the vertical groove, the longitudinal groove and the internal thread. The outer-layer spiral tube allows the first and the second lifting points to move side by side. The internal thread of the upper-section spiral tube only allows the second lifting point to move.

TECHNICAL FIELD

The invention relates to a packaging container of lipstick, belongs tothe field of packaging of cosmetics and particularly relates to acomplete exhaustion type lipstick tube which can make fullest use of thelipstick.

BACKGROUND OF THE INVENTION

All lipsticks are fixed in the following way so far: a lipstick bodywhich is near to ⅓ of the full length of one lipstick is directlyinserted into a fixed cup positioned on the innermost layer of alipstick tube, by relatively rotating an outer-layer spiral tube and amiddle-layer involution tube (as the middle-layer involution tube ispositioned on the inner side of the outer-layer spiral tube, and themiddle-layer involution tube cannot be in direct contact with theouter-layer spiral tube; when in use, a base which is fixed at thebottom of the middle-layer involution tube and the outer-layer spiraltube are relatively rotated). A lifting point on the fixed cup can movealong the internal thread of the outer-layer spiral tube; furthermore,as the lifting point penetrates the longitudinal groove of themiddle-layer involution tube, the fixed cup can move up and down duringrotation so as to push out the lipstick or take the lipstick back intothe middle-layer involution tube.

However, under the conventional structure, when the fixed cup is sentupward until it is flush with the tube mouth of the middle-layerinvolution tube and that of the outer-side spiral tube, the fixed cupcannot ascend any more, namely this place is the highest point of thefixed cup. Although the upper-section lipstick, which is exposed on thecup mouth of the fixed cup, can be completely pushed out, about ⅓ of thelipstick, which is inserted into the fixed cup, cannot be pushed outfurther and cannot be used; in other words, each lipstick must discardabout ⅓ of the lipstick.

SUMMARY OF THE INVENTION

The invention aims at providing a complete exhaustion type lipstick tubewhich can further push out lipstick on the inner side of a fixed cupafter the lipstick exposed on the fixed cup is exhausted while notchanging the appearance shape and the basic size of the existinglipstick tube.

The technical scheme adopted by the invention for solving the technicalproblem is as follows: a complete exhaustion type lipstick tubecomprises a base and a cover body, wherein the cover body is detachablybuckled on the base, an outer-layer spiral tube with an internal thread,a middle-layer involution tube with a longitudinal groove and a fixedcup arranged on the inner side for setting lipstick, are sequentiallysheathed on the inner side of the base from outside to inside, theouter-layer spiral tube and the middle-layer involution tube can rotaterelatively, the bottom of the middle-layer involution tube is fixed inthe base, and the fixed cup can move up and down along the middle-layerinvolution tube during rotation, wherein,

the fixed cup is a separated fixed cup and formed by sheathing the cupwall on the outer side and the base plate on the inner side, wherein,

a vertical groove is arranged on the cup wall and the tube wall, a firstlifting point is arranged under the vertical groove, and the firstlifting point penetrates the longitudinal groove of the middle-layerinvolution tube and is embedded in the internal thread of theouter-layer spiral tube;

a second lifting point is arranged on the outer surface of the baseplate, the second lifting point penetrates the vertical groove of thecup wall and the longitudinal groove of the middle-layer involution tubeand is embedded in the internal thread of the outer-layer spiral tube,the second lifting point is longitudinally stacked with the firstlifting point of the cup wall at the bottom of the vertical groove ofthe cup wall and can move up and down along the vertical groove, and alipstick fixing part is arranged on the base plate;

the outer-layer spiral tube is divided into an upper section and a lowersection, the width of the internal thread of the lower-section spiraltube is sufficient to enable the first lifting point and the secondlifting point, which are longitudinally stacked, to move side by side,and the width of the internal thread of the upper-section spiral tubecan only enable the second lifting point to move alone.

By relatively rotating the lower-section spiral tube and themiddle-layer involution tube, the first lifting point of the cup walland the second lifting point of the base plate can ascend simultaneouslyalong the longitudinal groove on the middle-layer involution tube, thefixed cup is upwardly pushed out of the inside of the middle-layerinvolution tube after the second lifting point is sent into the inlet ofthe internal thread of the upper-section spiral tube, as the width ofthe internal thread of the upper-section spiral tube can only enable onelifting point to enter, the first lifting point cannot ascend any moreand stays at the top of the internal thread of the lower-section spiraltube, and then the fixed cup achieves the highest point; by furtherrelatively rotating the upper-section spiral tube and the middle-layerinvolution tube, the second lifting point of the base plate can ascendalong the vertical groove of the cup wall, the base plate is upwardlypushed out of the inside of the cup wall, and then the lipstick in thefixed cup can be completely pushed out.

The structural principle of the invention is as follows:

The original integrated type lipstick fixed cup is changed to the splittype, namely the fixed cup is divided into the cup wall and the baseplate, and the lipstick is fixed in the space constituted by the cupwall and the base plate at the bottom on the inner side of the cup wall;simultaneously, the original integrated type outer-layer spiral tube isalso changed to the two-section type, namely the spiral tube is dividedinto the upper-section spiral tube and the lower-section spiral tube.

There are many forms for fixing the middle-layer involution tube and thebase, such as step form, or buckle form, or bonding form and the like,and the premise is that the two can be fixed together.

At the beginning of use, the lower-section spiral tube and themiddle-layer involution tube (the base) are rotated relatively, the cupwall and the base plate do not move relatively, but rotate and ascend ordescend as a whole along the middle-layer involution tube like anordinary fixed cup. The first lifting point on the outer side of the cupwall is arranged below the vertical groove, namely the bottom of the cupwall, when the fixed cup ascends to the joint between the upper-sectionspiral tube and the lower-section spiral tube, as the width of theinternal thread of the upper-section spiral tube can only enable onelifting point (the second lifting point of the base plate) to enter, thefirst lifting point of the cup wall stays at the top of the internalthread of the lower-section spiral tube and cannot ascend any more; whenthe lipstick is used continuously, the upper-section spiral tube and themiddle-layer involution tube (the base) are relatively rotated, the cupwall and the base plate start to move relatively, and the base plateascends or descends along the vertical groove of the cup wall so as tofurther push out the effective part of the lipstick in the fixed cupuntil the effective part of the lipstick is completely pushed out andused. On the basis of the above scheme, in order to ensure that theouter-side spiral tube cannot be drawn out due to the two-section typestructure, a fixing groove is arranged on the upper edge of the innerwall of the upper-section spiral tube, a fixing point in thecorresponding position is arranged on the upper edge of the periphery ofthe middle-layer involution tube, and the fixing point is embedded inthe fixing groove so as to position the upper-section spiral tube andsimultaneously position the lower-section spiral tube at the lower part.

A plurality of the positioning forms can be adopted, for example, aflange with T-shaped section is formed on the upper edge of themiddle-layer involution tube, so that the upper-section spiral tube andthe lower-section spiral tube are clamped between the flange and thebase, and the positioning of the outer-layer spiral tube can also berealized.

In addition, transverse grooves in the reverse directions are formed atthe two ends of the longitudinal groove of the middle-layer involutiontube, the whole is in the shape of a Z, and the arrangement of thetransverse grooves can leave a margin for movement of the lifting pointsso as to actually position the lipstick at the highest point or thelowest point and ensure the structural stability in the position. Itshould be noted that the height of the transverse groove at the lowerend of the longitudinal groove can enable the first lifting point andthe second lifting point to move side by side, and the height of thetransverse groove at the upper end of the longitudinal groove can onlyenable the second lifting point to move alone.

On the basis of the above scheme, in the outer-layer spiral tube, theslope of the internal thread of the lower-section spiral tube is greaterthan that of the internal thread of the upper-section spiral tube. Thedifferent slopes can control the speed of pushing out the lipstick, whenthe lipstick exposed on the fixed cup is used up and the residuallipstick in the fixed cup is pushed out, as the slope of the internalthread of the upper-section spiral tube is smaller, the speed of turningup the lipstick in the fixed cup is slowed down and the stability duringthe use can still be ensured.

On the basis of the above scheme, the first lifting point is next to thelower part of the vertical groove on the cup wall, the second liftingpoint of the base plate is arranged in the vertical groove, the firstand the second lifting points are longitudinally closely stacked, whenthe fixed cup is positioned in the highest point on the cup wall, theboundary between the upper-section spiral tube and the lower-sectionspiral tube is arranged at the tangential line between the first liftingpoint and the second lifting point.

In the fixed cup, the diameter of the first lifting point of the cupwall is the same with that of the second lifting point of the base, andthe center of the circle of the first lifting point and the center ofthe circle of the second lifting point are positioned on the samevertical line, thereby facilitating joint ascending or descending of thefirst lifting point and the second lifting point in the longitudinalgroove of the middle-layer involution tube.

On the basis of the scheme, in order to facilitate processing and enablethe lifting points to move freely in the vertical groove and thelongitudinal groove, the width of the vertical groove of the cup wall isequivalent to that of the longitudinal groove of the middle-layerinvolution tube, and is matched with the diameter of the first liftingpoint and the diameter of the second lifting point.

On the basis of the above scheme, the lipstick fixing part on the baseplate is a semi-ellipsoid and the lipstick is embedded on the inner sideof the fixed cup and positioned by the semi-ellipsoid. The lipstickfixing part can adopt various forms and can also be in the shape of amushroom, or a semi-ellipse with a platform at the bottom, or a roundedthree-edged or four-edged olive and the like, and the lipstick fixingpart has no taper angles or edge angles and cannot only stabilize thelipstick, but also completely exhaust the last lipstick attached on thefixing part in an actual and convenient manner no matter which angle isadopted when the lipstick in the fixed cup is almost completelyexhausted.

On the basis of the above scheme, the height of the base plate is ⅓ ofthe overall height of the fixed cup.

The invention has the following benefits:

The lipstick tube of the invention changes the original integrated typefixed cup into the split type. The integrated type outer-layer spiraltube is changed to the two-section type. The structure is reliable. Thetwo-section type rotation is adopted. The action of the lower-sectionspiral tube is not different from the ordinary lipstick spiral tube. Theupper-section spiral tube is used for turning up the base plate of thefixed cup when the lipstick exposed on the fixed cup is exhausted. Thelipstick on the inner side of the fixed cup can be further pushed outfor use so as to achieve the complete exhaustion effect.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1A is a schematic diagram of an assembly structure of theinvention.

FIG. 1B is a schematic diagram of the assembly structure of theinvention showing the base plate 12 being at a different position.

FIG. 2 is a schematic diagram of an unfolded structure of an outer-layerspiral tube of the invention.

FIG. 3 is a schematic diagram of a three-dimensional structure of anouter-layer spiral tube of the invention.

FIG. 4 is a schematic diagram of a three-dimensional structure of amiddle-layer involution tube of the invention.

FIG. 5 is a schematic diagram of a three-dimensional structure of amounting of middle-layer involution tube and base of the invention.

FIG. 6 is a schematic diagram of a main view structure of a cup wall ofthe invention.

FIG. 7 is a schematic diagram of a three-dimensional structure of a cupwall of the invention.

FIG. 8 is a schematic diagram of a main view structure of a base plateof the invention.

FIG. 9 is a schematic diagram of a three-dimensional structure of a baseplate of the invention.

FIG. 10 is a stereogram of an assembly structure of a fixed cup of theinvention.

FIG. 11 is a diagram of the moving process of lifting points in theoperation of the invention.

DESCRIPTION OF REFERENCE SIGNS

 1—fixed cup 11—cup wall 111—first lifting point 112—vertical groove12—base plate 121—second lifting point 122—lipstick fixing part 2—middle-layer  21—longitudinal groove  22—fixing point involution tube 3—outer-layer spiral tube 31—upper-section 311—internal thread312—positioning groove spiral tube 32—lower-section 321—internal threadspiral tube A—boundary  4—base  5—lipstick

DETAILED DESCRIPTION OF THE INVENTION

In combination with the figures, the structure of the invention isfurther described. As shown in FIGS. 1A to 11, a complete exhaustiontype lipstick tube comprises a base 4 and a cover body (which is notshown in the figures), wherein the cover body is detachably buckled onthe base 4, an outer-layer spiral tube 3 with internal thread, amiddle-layer involution tube 2 with a longitudinal groove 21 and a fixedcup 1 arranged on the inner side for setting lipstick 5, aresequentially sheathed on the inner side of the base 4 from outside toinside, the outer-layer spiral tube 3 and the middle-layer involutiontube 2 can rotate relatively, the bottom of the middle-layer involutiontube 2 is fixed in the base 4, and the fixed cup 1 can move up and downalong the middle-layer involution tube 2 during rotation.

The fixed cup 1 is a separated fixed cup and formed by sheathing the cupwall 11 on the outer side and the base plate 12 on the inner side,wherein,

a vertical groove 112 is arranged on the cup wall 11 and the tube wall.A first lifting point 111 is arranged directly under the vertical groove112 by being next to the vertical groove 112, and the first liftingpoint 111 penetrates the longitudinal groove 21 of the middle-layerinvolution tube 2 and is embedded in the internal thread of theouter-layer spiral tube 3. The height of the base plate 12 is ⅓ of theoverall height of the fixed cup 1. A second lifting point 121 isarranged on the outer surface of the base plate 12. The second liftingpoint 121 penetrates the vertical groove 112 of the cup wall 11 and thelongitudinal groove 21 of the middle-layer involution tube 2 and isembedded in the internal thread of the outer-layer spiral tube 3.

In the fixed cup 1, the second lifting point 121 is longitudinallystacked with the first lifting point 111 of the cup wall 11 at thebottom of the vertical groove 112 of the cup wall and can move up anddown along the vertical groove 112. A lipstick fixing part 122 isarranged at the middle part of the base plate 12 and is asemi-ellipsoid, and the lipstick 5 is embedded on the inner side of thefixed cup 1 and positioned by the semi-ellipsoid.

The diameter of the first lifting point 111 of the cup wall 11 is thesame as that of the second lifting point 121 of the base 12, and thecenter of the circle of the first lifting point 111 and the center ofthe circle of the second lifting point 121 are positioned on the samevertical line. The width of the vertical groove 112 of the cup wall 11is equivalent to that of the longitudinal groove 21 of the middle-layerinvolution tube 2, and the width of the vertical groove 112 of the cupwall 11 is matched with the diameter of the first lifting point 111 andthe diameter of the second lifting point 121.

The outer-layer spiral tube 3 is divided into an upper section and alower section, when the fixed cup 1 is positioned at the highest point,and the first lifting point 111 of the cup wall 11 is longitudinallyclosely stacked with the second lifting point 121 of the base plate 12.The boundary A between the upper-section spiral tube 31 and thelower-section spiral tube 32 is arranged at the tangential line betweenthe first lifting point 111 and the second lifting point 121, wherein,

a fixing groove 312 is arranged on the upper edge of the inner wall ofthe upper-section spiral tube 31, a fixing point 22 in the correspondingposition is arranged on the upper edge of the periphery of themiddle-layer involution tube 2, and the fixing point 22 is embedded inthe fixing groove 312 so as to position the upper-section and thelower-section spiral tubes 31, 32. The width of the internal thread 321of the lower-section spiral tube 32 is sufficient to enable the firstlifting point 111 and the second lifting point 121, which arelongitudinally stacked, to move simultaneously, and the width of theinternal thread 311 of the upper-section spiral tube 31 can only enablethe second lifting point 121 to move alone.

The slope of the internal thread 321 of the lower-section spiral tube isgreater than that of the internal thread 311 of the upper-section spiraltube.

By relatively rotating the lower-section spiral tube 32 and themiddle-layer involution tube 2 (the base 4), the first lifting point 111of the cup wall 11 and the second lifting point 121 of the base plate 12can ascend simultaneously along the longitudinal groove 21 on themiddle-layer involution tube 2. The fixed cup 1 is upwardly pushed outof the inside of the middle-layer involution tube 2 until the secondlifting point 121 is sent into the inlet of the internal thread 311 ofthe upper-section spiral tube 31, as the width of the internal thread311 of the upper-section spiral tube 31 can only enable one liftingpoint (the second lifting point 121) to enter, the first lifting point111 stays at the top of the internal thread 321 of the lower-sectionspiral tube 32 and cannot ascend any more, and then the fixed cup 1achieves the highest point. By further relatively rotating theupper-section spiral tube 31 and the middle-layer involution tube 2, thesecond lifting point 121 of the base plate 12 can ascend along thevertical groove 112 of the cup wall 11 and the longitudinal groove 21 ofthe middle-layer involution tube 2, and the base plate 12 is upwardlypushed to the top portion of the inside of the cup wall 11 as shown inFIG. 1B.

What is claimed is:
 1. A complete exhaustion type lipstick tube,comprising a base, an outer-layer spiral tube with internal thread, amiddle-layer involution tube with a longitudinal groove, and a fixed cuparranged on the inner side for setting lipstick, are sequentiallysheathed on the inner side of the base from outside to inside, theouter-layer spiral tube and the middle-layer involution tube can rotaterelatively, the bottom of the middle-layer involution tube is fixed inthe base, the fixed cup can move up and down along the middle-layerinvolution tube during rotation, wherein the fixed cup is a separatedfixed cup and formed by sheathing a cup wall on the outer side and thebase plate on the inner side, wherein, a vertical groove is arranged onthe cup wall a first lifting point is arranged directly under thevertical groove, and the first lifting point penetrates the longitudinalgroove of the middle-layer involution tube and is embedded in aninternal thread of the outer-layer spiral tube; a second lifting pointis arranged on the outer surface of the base plate, the second liftingpoint penetrates the vertical groove of the cup wall and a longitudinalgroove of the middle-layer involution tube and is embedded in theinternal thread of the outer-layer spiral tube, the second lifting pointis longitudinally stacked with the first lifting point of the cup wallat the bottom of the vertical groove of the cup wall and can move up anddown along the vertical groove, and a lipstick fixing part is arrangedon the base plate; the outer-layer spiral tube is divided into an uppersection and a lower section, the width of the internal thread of thelower-section spiral tube is sufficient to enable the first liltingpoint and the second lifting point, which are longitudinally stacked, tomove side by side, and the width of the internal thread of theupper-section spiral tube can only enable the second lifting point tomove alone; by relatively rotating the lower-section spiral tube and themiddle-layer involution tube, the first lifting point of the cup walland the second lifting point of the base plate can ascend simultaneouslyalong the longitudinal groove on the middle-layer involution tube, thefixed cup is upwards pushed out of the inside of the middle-layerinvolution tube till the second lifting point is sent into an inlet ofthe internal thread of the upper-section spiral tube, then the firstlifting point stays at the top of the internal thread of thelower-section spiral tube, and then the fixed cup achieves the highestpoint; by further relatively rotating the upper-section spiral tube andthe middle-layer involution tube, the second lifting point of the baseplate can ascend along the vertical groove of the cup wall, and then thebase plate is upwards pushed to a top portion of the inside of the cupwall.
 2. The complete exhaustion type lipstick tube according to claim1, wherein a fixing groove is arranged on the upper edge of the innerwall of the upper-section spiral tube, a fixing point in thecorresponding position is arranged on the upper edge of the periphery ofthe middle-layer involution tube, and the fixing point is clamped in thefixing groove so as to position the upper-section spiral tube.
 3. Thecomplete exhaustion type lipstick tube according to claim 1, wherein, inthe outer-layer spiral tube, a slope of the internal thread of thelower-section spiral tube is greater than that of the internal thread ofthe upper-section spiral tube.
 4. The complete exhaustion type lipsticktube according to claim 1, wherein the first lifting point is next tothe lower part of the vertical groove on the cup wall, the secondlifting point of the base plate is arranged in the vertical groove, thefirst and the second lifting points are longitudinally closely stacked,when the fixed cup is positioned in the highest point on the cup wall,the boundary between the upper-section spiral tube and the lower-sectionspiral tube is arranged at the tangential line between the first liftingpoint and the second lifting point.
 5. The complete exhaustion typelipstick tube according to claim 1, wherein, in the fixed cup, thediameter of the first lifting point of the cup wall is the same withthat of the second lifting point of the base, and the center of thecircle of the first lifting point and the center of the circle of thesecond lifting point are positioned on the same vertical line.
 6. Thecomplete exhaustion type lipstick tube according to claim 5, wherein thewidth of the vertical groove of the cup wall is equivalent to that ofthe longitudinal groove of the middle-layer involution tube, and thewidth of the vertical groove of the cup wall is matched with thediameter of the first lifting point and the diameter of the secondlifting point.
 7. The complete exhaustion type lipstick tube accordingto claim 1, wherein the lipstick fixing part on the base plate is asemi-ellipsoid and the lipstick is embedded on the inner side of thefixed cup and positioned by the semi-ellipsoid.
 8. The completeexhaustion type lipstick tube according to claim 1, wherein the heightof the base plate is ⅓ of the overall height of the fixed cup.